[Joint Development with the Ministry of Land, Infrastructure, Transport and Tourism] Ground improvement with a site strength ratio of 1.0 or higher! Support layers visible.

Eliminating the "invisible" concerns of column improvement. Achieving both direct visual inspection of the support layer and a field strength ratio of 1.0 or higher. Comprehensive comparison table with conventional methods and design standard strengths.

This is a technical document aimed at preventing quality issues in ground improvement. It allows for direct visual confirmation of the "support layer," which has been difficult to verify with conventional columnar improvement methods. Furthermore, through strict slurry management, it achieves a strength ratio of "strength ratio ≥ 1.0," which is generally said to be around 0.2 to 0.8 (field test specimen strength / laboratory mix strength). Please take a look at this reliable quality management method developed in collaboration with the Ministry of Land, Infrastructure, Transport and Tourism and registered with NETIS. 【Contents】 Overview of the method and its reliability Challenges of conventional methods and the technical superiority of this method Design advantages and application conditions Features of quality management

Ground foundation construction method